package tom.http;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

public class HttpServer {
	
	private static final String SHUTDOWN_COMMAND = "/SHUTDOWN";
	
	private boolean shutdown = false;
	
	public static void main(String[] args) {
		HttpServer server = new HttpServer();
		server.await();
	}
	
	public void await(){
		ServerSocket serverSocket = null;
		int port = 8081;
		try{
			serverSocket = new ServerSocket(port, 1, InetAddress.getByName("127.0.0.1"));
		}catch(IOException e){
			e.printStackTrace();
			System.exit(1);
		}
		while(!shutdown){
			Socket socket = null;
			InputStream in = null;
			OutputStream out = null;
			try{
				socket = serverSocket.accept();
				in = socket.getInputStream();
				out = socket.getOutputStream();
				
				Request request = new Request(in);
				request.parse();
				
				Response response = new Response(out);
				response.setRequest(request);
				
				if(request.getUri().startsWith("/servlet/")){
					ServletProcessor servletProcessor = new ServletProcessor();
					servletProcessor.process(request, response);
				}else{
					StaticResourceProcessor staticResourceProcessor = new StaticResourceProcessor();
					staticResourceProcessor.process(request, response);
				}
				
				socket.close();
				shutdown = request.getUri().equals(SHUTDOWN_COMMAND);
			}catch(Exception e){
				e.printStackTrace();
				continue;
			}
		}
	}

}
